- About 3 millions of document- About 1500 bulk insert in content store every day- No Share webapp utilization

Here the error stacktrace

Exception in thread "RMI TCP Connection(idle)" java.lang.OutOfMemoryError: GC overhead limit exceededException in thread "DefaultScheduler_QuartzSchedulerThread" java.lang.OutOfMemoryError: GC overhead limit exceeded at org.quartz.CronExpression.addToSet(CronExpression.java:1008) at org.quartz.CronExpression.storeExpressionVals(CronExpression.java:571) at org.quartz.CronExpression.buildExpression(CronExpression.java:430) at org.quartz.CronExpression.<init>(CronExpression.java:255) at org.quartz.CronExpression.clone(CronExpression.java:1571) at org.quartz.CronTrigger.clone(CronTrigger.java:464) at org.quartz.simpl.RAMJobStore.acquireNextTrigger(RAMJobStore.java:1265) at org.quartz.core.QuartzSchedulerThread.run(QuartzSchedulerThread.java:264)java.lang.OutOfMemoryError: GC overhead limit exceeded at org.apache.lucene.index.TermBuffer.toTerm(TermBuffer.java:122) at org.apache.lucene.index.SegmentTermEnum.term(SegmentTermEnum.java:169) at org.apache.lucene.index.SegmentMergeInfo.next(SegmentMergeInfo.java:70) at org.apache.lucene.index.DirectoryReader$MultiTermEnum.next(DirectoryReader.java:1010) at org.alfresco.solr.tracker.CoreTracker.getLastTxCommitTimeBeforeHoles(CoreTracker.java:2757) at org.alfresco.solr.tracker.CoreTracker.trackRepository(CoreTracker.java:1159) at org.alfresco.solr.tracker.CoreTracker.updateIndex(CoreTracker.java:491) at org.alfresco.solr.tracker.CoreTrackerJob.execute(CoreTrackerJob.java:45) at org.quartz.core.JobRunShell.run(JobRunShell.java:216) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:563)Exception in thread "SolrTrackerScheduler_QuartzSchedulerThread" java.lang.OutOfMemoryError: GC overhead limit exceeded at java.util.TreeMap.put(TreeMap.java:554) at java.util.TreeSet.add(TreeSet.java:238) at org.quartz.CronExpression.addToSet(CronExpression.java:1008)